title: The management of mobile bearing dislocation in the Oxford lateral unicompartmental knee replacement.
abstract: This article describes a technique to manage dislocations of mobile bearing lateral unicompartmental knee replacements. When dislocations occur, the bearing usually subluxes medially over the medial wall of the tibial component into the intercondylar notch. By positioning small fragment screws with their heads above the vertical wall, thereby increasing the height of the wall, subsequent dislocations can be prevented. Seven cases treated in this manner are reported, of which one of the seven has redislocated. In the remaining six, their clinical outcomes are comparable to the outcomes of those without dislocations.
authors.affiliation: Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Headington, Oxford, OX3 7LD, UK. sam.weston-simons@ndorms.ox.ac.uk
authors.forename: John S
authors.initials: JS
authors.lastname: Weston-Simons
authors.forename: H
authors.initials: H
authors.lastname: Pandit
authors.forename: H S
authors.initials: HS
authors.lastname: Gill
authors.forename: W F M
authors.initials: WF
authors.lastname: Jackson
authors.forename: A J
authors.initials: AJ
authors.lastname: Price
authors.forename: C A F
authors.initials: CA
authors.lastname: Dodd
authors.forename: D W
authors.initials: DW
authors.lastname: Murray
mesh_terms: D019645:Arthroplasty, Replacement, Knee / Q000379:methods*; D001863:Bone Screws; D006801:Humans; D004204:Joint Dislocations / Q000000981:diagnostic imaging / Q000517:prevention & control* / Q000601:surgery; D007720:Knee Prosthesis; D011183:Postoperative Complications / Q000000981:diagnostic imaging / Q000517:prevention & control* / Q000601:surgery; D011474:Prosthesis Design; D011475:Prosthesis Failure; D011859:Radiography; D012189:Retrospective Studies; D016896:Treatment Outcome; D016474:Weight-Bearing